Manufacturing method of polyethylene synthetic resin pipe with improved rigidity and elasticity

• Main Authors: KOO YOUNG MO, CHOI, YOUNG JAE
• Format: Patent
• Language: English; Korean
• Published: 20.12.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

본 발명은 a) 제1폴리에틸렌수지 컴파운드, 카본블랙, 표면개질된 바잘트섬유 및 표면개질된 무기충전제를 배합하여 마스터배치 조성물을 제조하는 단계; b) 상기 마스터배치 조성물에 제2폴리에틸렌 컴파운드가 추가된 합성수지관용 조성물을 압출기에 투입하는 단계; c) 압출기에 투입된 합성수지관용 조성물을 압출 성형하여 프로파일을 제조하는 단계; 및 d) 상기 프로파일을 냉각 및 성형하여 파이프 모양의 폴리에틸렌 합성수지관을 제조하는 단계;를 포함하는, 폴리에틸렌 합성수지관의 제조 방법에 관한 것이다.